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Nervous System

by: Heer Patel

Nervous System 110

Heer Patel
GPA 4.0
Introductory Biology for non-Science Majors
Christiane Healey

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About this Document

This includes a very brief overview of the human nervous system and includes transmission signals.
Introductory Biology for non-Science Majors
Christiane Healey
Class Notes
#Bio #Biology #NervousSystem #Transmission #Neurons #Brain
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This 3 page Class Notes was uploaded by Heer Patel on Friday October 9, 2015. The Class Notes belongs to 110 at University of Massachusetts taught by Christiane Healey in Spring2015. Since its upload, it has received 43 views. For similar materials see Introductory Biology for non-Science Majors in Biology at University of Massachusetts.

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Date Created: 10/09/15
N ERVOUS SYSTEM How are signals transmitted How signals are transmitted within the body Sensory receptors Sensory neurons Interneurons Motor neurons Signal Transmission within and between neurons Synaptic Terminals Transmits signals from other neurons Dendrites receives signal from other neurons Cell body integrates signals coordinates the neuron39s metabolic activities Action potential starts Axon Conducts the action potential Synaptic terminals Transmit signals to other neurons Dendrites of other neurons receives signal Resting and Action Potential Membrane Potential electric potential between inside and outside membrane Resting Potential Action Potential What happens at the Synapse Presynaptic action potential triggers release of neurotransmitters NT through in ux of Ca2 Postsynaptic NT causes ion channels in membrane of open Flow of ions causes change in membrane potential Cleft NT reuptake by presynaptic cell Initiation of an Action Potential Postsynaptic potentials Excitatory and inhibitory Summed to determine whether or not the neuron will re Pulling it all together An action potential in the presynaptic neuron does not always lead to an action potential in the postsynaptic neuron Summation happens at the intersection of cell body and axon Action potentials are always the same The signal is encoded by ring rate Transmission of Signals Resting and Action potentials Membrane potential electric potential between inside and outside of membrane Resting potential action potential Initiation of an action potential Postsynaptic potentials Excitatory or inhibitory Summed to determine whether neuron will re Putting it all together An action potential in the presynaptic neuron does not always lead to an action potential in the postsynaptic neuron Summation happens at the intersection of cell body and axon Action potentials are always the same The signal is encoded by the ring rate


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